Comparison

오아 IoT vs Age Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

오아 IoT

Features
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오아는 '발명'이 아닌 '발견'을 하는 브랜드입니다. 제품이 아닌 생활 가치를 제공하며 소비자가 필요한 기능과 서비스를 찾아 담아내는 브랜드 입니다. 오아 IoT 앱으로 언제 어디서나 오아 제품의 상태를 알고 제어할 수 있습니다.

About

Age Calculator

Calculate your precise age in various formats, including years, months, days, and even seconds. Track upcoming birthdays with a D-Day countdown and manage contacts' special dates. Discover your zodiac sign and receive daily horoscopes.

Highlights
  • Accurate age calculation in multiple units
  • Supports international, Korean, and Western age formats
  • D-Day countdown for upcoming birthdays
  • Birthday manager for friends and family
  • Zodiac sign identification
  • Daily horoscope updates
Features
Read full description

Easily Calculate Your Age & Track Birthdays! Ever wondered how old you are in years, months, weeks, days, hours, or even seconds? With this "Age Calculator, you can quickly and accurately determine your age in different formats, including international age, Korean age, and Western age. The app also features a built-in D-Day tracker, helping you keep track of upcoming birthdays for family, friends, and loved ones. On the birthday itself, it will be marked as "D-Day" for easy recognition. Additionally, discover your zodiac sign and get a daily horoscope based on your birthdate! Features 1. Accurate Age Calculation -- Instantly find out your exact age in years, months, weeks, days, hours, and seconds. 2. Multiple Age Formats -- Supports international age, Korean age, and Western age calculations. 3. D-Day Countdown -- Easily track the number of days left until your next birthday. 4. Birthday Manager -- Save and manage birthdays for friends and family. 5. Zodiac Sign Finder -- Automatically determines your zodiac sign based on your birthdate. 6. Daily Horoscope Updates -- Get personalized daily horoscopes according to your zodiac sign and birthday. Download now and keep track of your age and special days effortlessly! How to Use - Enter your date of birth - Select a target date (the reference date for calculation). - Tap 'Calculate' to instantly view tour exact age. Who Should Use This App? - Those who want a quick and easy way to calculate their age. - People who need to track birthdays for family and friends. - Anyone curious about their zodiac sign and daily horoscope. - Users who want a D-Day countdown for upcoming birthdays. - Anyone who often needs age calculations for official documents. For bug reports & inquiries: cleandino@gmail.com

Screenshots

오아 IoT3 screens
Age Calculator4 screens

Verdict

The call

The clearest difference is ads: 오아 IoT at none against Age Calculator's shown. 오아 IoT also leads on iOS requirement (12.4 vs 18.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

오아 IoT ships an update every 3 weeks, Age Calculator every 2 weeks. Both last shipped on November 3, 2026.

Scorecard2 real differences · 6 level
오아 IoT versus Age Calculator: the parameters behind the verdict, then further details
Parameter오아 IoTAge Calculator
PriceFreeFree
Positive reviews—0.0% of reviews
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.4 — better18.0
Further details — not scored
Size50 MB55 MB
Age rating4+4+
DeveloperOA Co.,Ltdminjung seo

In-app purchases

None

오아 IoT

No in-app purchases

None

Age Calculator

No in-app purchases

Questions

Is 오아 IoT free?
오아 IoT is free to download, with no in-app purchases.
Is Age Calculator free?
Age Calculator is free to download, with no in-app purchases.
Do 오아 IoT or Age Calculator have ads?
Age Calculator shows ads; 오아 IoT does not.
Which is updated more often, 오아 IoT or Age Calculator?
오아 IoT ships an update every 3 weeks, and Age Calculator every 2 weeks. Most recently, 오아 IoT was updated on November 3, 2026 and Age Calculator on November 3, 2026.

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